Spherical nanoporous LiCoPO4/C composites as high performance cathode materials for rechargeable lithium-ion batteries

被引：87

作者：

Liu, Jun ^{[1
]}

Conry, Thomas E. ^{[1
]}

Song, Xiangyun ^{[1
]}

Yang, Li ^{[1
]}

Doeff, Marca M. ^{[1
]}

Richardson, Thomas J. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 27期

关键词：

ELECTRODE MATERIALS; LIFEPO4; CHALLENGES; FE;

D O I：

10.1039/c1jm10793c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Spherical nanoporous LiCoPO4/C composite microparticles were synthesized from soluble precursors by spray pyrolysis. They consisted of similar to 70 nm primary particles agglomerated into micron-sized spheres with an average pore size of 68 nm and a 3-5 nm thick conformal carbon coating comprising 2.4% carbon by weight. The material delivered a reversible capacity of 123 mAh g(-1) at C/10 rate, and showed excellent cycling behavior and rate capability. The good electrochemical performance is due to the presence of three-dimensional networks for both electronic and ionic transport.

引用

页码：9984 / 9987

页数：4

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